Struct PartitionMeta 

pub struct PartitionMeta {
    pub min_ts: i64,
    pub max_ts: i64,
    pub row_count: u64,
    pub size_bytes: u64,
    pub schema_version: u32,
    pub state: PartitionState,
    pub interval_ms: u64,
    pub last_flushed_wal_lsn: u64,
    pub column_stats: HashMap<String, ColumnStatistics>,
}

Metadata for a single time partition.

Stored in the partition manifest (redb). Shared between Origin and Lite.

Fields

min_ts: i64

Inclusive lower bound of timestamps in this partition.

max_ts: i64

Inclusive upper bound of timestamps in this partition.

row_count: u64

Number of rows.

size_bytes: u64

On-disk size in bytes (all column files combined).

schema_version: u32

Schema version — incremented on column add/drop/rename.

state: PartitionState

Current lifecycle state.

interval_ms: u64

The partition interval duration in milliseconds that produced this partition. Different partitions may have different widths after a config change.

last_flushed_wal_lsn: u64

WAL LSN at last successful flush to this partition. Used for crash recovery — replay WAL records with LSN > this value.

column_stats: HashMap<String, ColumnStatistics>

Per-column statistics (codec, min/max/sum/count/cardinality). Keyed by column name. Populated at flush time. Empty for legacy partitions.

Implementations

impl PartitionMeta

pub fn overlaps(&self, range: &TimeRange) -> bool

Whether this partition’s time range overlaps a query range.

pub fn is_queryable(&self) -> bool

Whether this partition is queryable (Active, Sealed, or Merged).

Trait Implementations

impl Clone for PartitionMeta

fn clone(&self) -> PartitionMeta

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PartitionMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PartitionMeta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PartitionMeta

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.